Phillips Truss Head Machine Screws Shenzhen Shi Shi Tong Metal Products Co., Ltd. Base Info Model NO.：99Material：Carbon SteelType：Mushroom HeadGroove：CrossConnection：Common BoltHead Style：Truss HeadStandard：GBGrade：8.8 Description Pre：Fastenal Self Tapping Screws - Free Tech Support Next：Flanged Flexible Joint
